An ultrasonic probe includes: a housing having an opening provided at a first end portion of the housing; a transducer provided in a position corresponding to the opening and configured to generate ultrasonic waves; a heat spreader provided underneath the transducer; and a printed circuit board (PCB) disposed between the transducer and the heat spreader, wherein the heat spreader includes: a body portion configured to absorb heat from the transducer; and a coupling portion that is formed at a side portion of the body portion and coupled to the housing.